Introduction to Unit Three

Intro to Unit Three

Multiple Choice

All materials have heat energy.

• true

• false

Multiple Choice

Heat

• Direct transfer of heat from one substance to another substance when the substances are touching

• Energy transferred between objects that are at different temperatures; moves from warm to cool

• Total energy of motion in the particles of a substance; heat energy

Multiple Choice

Radiation

• Total energy of motion in the particles of a substance; heat energy

• Movement of a liquid or gas, caused by differences in temperature and density, that transfers heat from one part of the fluid to another

• Transfer of energy by electromagnetic waves, can occur without contact through empty space

Multiple Choice

Convection

• Transfer of thermal energy by the circulation or movement of a liquid or gas; heat rises, cold sinks

• Movement of a liquid or gas, caused by differences in temperature and density, that transfers heat from one part of the fluid to another

• Direct transfer of heat from one substance to another substance when the substances are touching

Multiple Choice

Conduction

• Transfer of thermal energy by the circulation or movement of a liquid or gas; heat rises, cold sinks

• Movement of a liquid or gas, caused by differences in temperature and density, that transfers heat from one part of the fluid to another

• Direct transfer of heat from one substance to another substance when the substances are touching

Open Ended

Why do you think the butter melted on the metal spoon first?

Multiple Choice

Conductor

• A material that conducts heat well

• A material that does not conduct heat well

• A measure of how hot or cold something is.

Multiple Choice

Insulator

• A material that conducts heat well

• A material that does not conduct heat well

• A measure of how hot or cold something is.

Multiple Choice

Temperature

• Transfer of thermal energy by the circulation or movement of a liquid or gas

• Energy transferred between objects that are at different temperatures; moves from warm to cool

• A measure of how hot or cold something is.

Multiple Choice

Solid

• A state of matter that has a definite shape and a definite volume; atoms are close together and don't move much

• a state of matter that has no definite shape but has a definite volume; atoms are further apart and move

• A state of matter with no definite shape or volume; atoms are spread out and move freely

Multiple Choice

Gas

• A state of matter that has a definite shape and a definite volume; atoms are close together and don't move much

• a state of matter that has no definite shape but has a definite volume; atoms are further apart and move

• A state of matter with no definite shape or volume; atoms are spread out and move freely

Multiple Choice

Liquid

• A state of matter that has a definite shape and a definite volume; atoms are close together and don't move much

• a state of matter that has no definite shape but has a definite volume; atoms are further apart and move

• A state of matter with no definite shape or volume; atoms are spread out and move freely